I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
praus praos proas prays prase paras peruse pareus porous parous praise pariahs pars purs pros proso pries pears pours pores perse puris pyres prows piers pairs press peres preys peris pross purse presa parrs prise prees prese parse pyros priss pursy purrs paris pares peers prose prosy pursue hypers pareos prissy piracy pooris paries purees porose parries peeress peeries perries prossie prez
praus ras phrase hoorahs frass paras aurous arras crass kurus arrays braws auras virus kerrias eyras knaurs horahs cuirass varias hurrahs cereus arias mbiras nairus boreas brass gerahs buras bras porous grues morass serais eras torahs sharias terais choreas charas durras urus urase druse yttrias trues dourahs trass torous cerous muras grass hydrase prays prase sierras crus cirrous draws bewrays xerus parous sorus suras liras sirras aureus gyrus areas brays rase lauras rays rues raws gurus horas boras forays bureaus proas harass koras pareus ferias cirrus varas ruse peruse hurrays hoorays rais varus praos rias nairas norias moras jarrahs erase frays braes maras morays sirrahs gyrase surahs soras gaurs surras cruse douras ceruse craws serous murras ferrous hydras grays terras cerias toras torus derays trays truss drays uraeus ureas duras whereas chirus hydrous chorus tiaras
prau para parae prao pray proa pauper spray sprue